I came home from work so excited to see so many posts, and that this became a sticky ... but alas, not quite there yet ... good information guys, keep it up!
this might help; [hint; it's plain english] and leans toward the 1-3-4-2 firing order doing better by having cylinders 1 and 3 seperated ... I could be wrong, I'm so burned out from work.
so; have we come up with a solution yet?
I also thought we should probably follow the way ford racing headers work, since they designed the engine, and probably know more about what they're doing ...